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TPS61045DRBR G4 from TI,Texas Instruments

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TPS61045DRBR G4

Manufacturer: TI

28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable 8-SON -40 to 85

Partnumber Manufacturer Quantity Availability
TPS61045DRBR G4,TPS61045DRBRG4 TI 5000 In Stock

Description and Introduction

28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable 8-SON -40 to 85 The TPS61045DRBR G4 is a DC-DC boost converter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Input Voltage Range:** 1.8 V to 5.5 V  
- **Output Voltage Range:** Adjustable from 2.5 V to 5.5 V  
- **Output Current:** Up to 300 mA (depending on input/output conditions)  
- **Switching Frequency:** 1.2 MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SON-8 (DRB)  
- **Features:**  
  - Low quiescent current (25 µA typical)  
  - Automatic PFM/PWM mode switching  
  - Integrated synchronous rectifier  
  - Soft-start function  
  - Over-temperature protection  
  - Short-circuit protection  

### **Descriptions and Features:**  
The TPS61045DRBR G4 is a high-efficiency, low-power boost converter designed for battery-powered applications. It integrates a synchronous rectifier to improve efficiency and reduce external component count. The device operates in pulse-frequency modulation (PFM) mode at light loads for better efficiency and switches to pulse-width modulation (PWM) mode at higher loads. It includes built-in protection features such as over-temperature and short-circuit protection.  

This converter is suitable for applications like portable electronics, energy harvesting, and IoT devices where extended battery life is critical.  

(Note: All information is based on the manufacturer's datasheet.)

Application Scenarios & Design Considerations

28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable 8-SON -40 to 85

Alternative Part Number

  • TPS61040DBVR --: Same TPS6104x boost converter family in a SOT-23-5 package; similar boost topology and control, suitable when the DRB package is not required and slightly lower current is acceptable.
  • TPS61041DBVR --: Sister device in the TPS6104x series with comparable boost converter function and pinout in SOT-23-5; good drop-in style option for lower-power designs.
  • LT1932ES6 --: Alternative boost/white LED driver from a different vendor with similar step-up function; requires layout and feedback network review but is a viable cross-vendor substitute.

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